Abbas, Z. K. and Zaidan, T. F. (2018) “The Study of Oral Findings, Oxidative Stress and Antioxidant Vitamin E in Serum and Saliva of Crohn’s Patients on Azathioprine Monotherapy and those on Combination of Anti-TNF-α Plus Azathioprine ”, Journal of Baghdad College of Dentistry, 30(1), pp. 39–45. doi:10.12816/0046310.